Capacitive cross-coupling and harmonic rejection
US9621110B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2015 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Nov 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/45481
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A power amplifier of the present invention comprises a first cascode including a MOSFET and a JFET and a first capacitor electrically connected between the source and the drain of the JFET. Two such power amplifiers in parallel form a differential power amplifier. In the differential amplifier a second capacitor can be electrically connected between the source and the drain of the second JFET. Another differential power amplifier comprises a first capacitor electrically connected between the gate of the first MOSFET and the source of the second MOSFET, and a second capacitor electrically connected between the gate of the second MOSFET and the source of the first MOSFET. Some of these differential power amplifiers also include capacitors electrically connected between the sources and the drains of the JFETs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.